This paper will exposit and outline the contribution of Friedrich Heinrich Jacobi (1743-1829) to the debate on Spinoza and Lessing [Der Spinozismusstreit] that took place between Jacobi and Moses Mendelssohn. Jacobi both introduced and epitomized the great philosophical controversies of his age. His influential text Von den göttlichen Dingen und Ihrer Offenbarung [On the Divine Things and Their Revelation] aroused the final debate about the intrinsic nihilism of modern philosophy, which, he postulated, ran the risk of becoming a serious threat to human life and intellect. From the author of the first English translation of this text, On the Divine Things and Their Revelation, this paper will provide a historical investigation of the debates that preceded and followed Jacobi's book.